Timing Belt Pulley With Taper bush Timing Belt Pulley with Taper bush Standard of Tooth Type: HTD Timing Belt Pully Timing Belt Pulley With Taper bush Standard of teeth shape: ISO 5294Material: Steel, Aluminum Alloy, Cast IronSurface Treatment: Blacking, Phosphatization....etc.TL18L050, TL19L050...etc... Timing Belt Pulley